The first flower would be entered in the green/yellow class in show judging because the yellow has a green olive cast. The class yellow would be bright yellow or armeniacum yellow. The second flower would enter in the white complex class, eventhough there is light yellow in center and dark freckles.Very nice flowers, Philippe (If I remember right?).
To quibble with just one minor detail: might the flower of the first plant, that you describe as white and green (albovirens), not more precisely be seen as white and yellow/golden (alboflavum/alboaureum)